<div dir="ltr"><div class="gmail_default" style="font-family:garamond,serif;font-size:large"><div class="gmail_default" style="font-family:garamond,serif;font-size:large">Hi, Robby,</div><div class="gmail_default" style="font-family:garamond,serif;font-size:large">I've
 verified that I'm searching using ISBN number(s) and that the multiple 
search option is greyed out, regardless of the search source.</div><div class="gmail_default" style="font-family:garamond,serif;font-size:large">Sid</div></div></div>